Surf Forecasts:
Jaconé surf forecast from 21 Aug 2026:
- Best quality surf: Monday 24 Aug, 3PM (local time) - 10ft (3.0m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 3AM (local time) - 10ft (3.0m), 15s period, S swell with 3,866 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 12AM (local time) - 6ft (1.8m), 10s period with SSW swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 12AM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.2m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 3.0m 15s and forecast to arrive on Tuesday (Aug 25) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Friday (Aug 28) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 23rd Aug) | 6ft (1.8m) 10s |
| Best Surf | 3PM (Mon 24th Aug) | 10ft (3.0m) 14s |
| Most Powerful | 3AM (Tue 25th Aug) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright, let’s break it down. Rusty here.
Right off the bat, we’ve got a solid window of surf coming up at Jaconé. The first week is packed with waves, but the real standout is a couple of days in the middle of the week where everything lines up. The water temperature is sitting at 73°F, which is pretty much what you’d expect for this time of year, nothing unusual.
Friday morning, the 21st, kicks things off with a clean 5ft swell out of the ENE, with a light cross-offshore breeze. The period is a bit short at 8 seconds, so it’s not the most powerful, but it’s clean and rideable. The combined swell energy is moderate, around 414. Not a standout, but a decent start.
Saturday morning, the 22nd, sees the swell bump up to 6ft from the SSW, but the wind is a cross-on, so it’s going to be choppy and messy. Not the day to get excited. The combined energy jumps to 419, but the quality is poor.
Sunday morning, the 23rd, is a bit better with a 6ft SSW swell and a cross-off breeze, keeping things cleaner. The combined energy is up to 583, but it’s still not a top-tier day.
Now, Monday the 24th rolls in with a 7ft southerly swell and a 13-second period, which is a nice long-period groundswell. The wind is cross-off and light, so the waves will be clean. The combined energy is a strong 1405. This is building towards the good stuff.
Tuesday the 25th. This is the best of the first week. Morning session, you’ve got an 8ft swell from the south, with a 14-second period – that’s serious groundswell energy, with a combined energy of 3029. The wind is cross-off from the ENE, keeping it clean. This is big, powerful, and for experienced surfers only. The crowd factor says “sometimes,” so it’s not empty, but it shouldn’t be a zoo. The swell direction is from the S, which is right in the sweet spot for Jaconé’s exposed setup. This is the highlight.
Wednesday the 26th morning is almost as good. The swell drops to 6ft, still from the south with a 12-second period, and the wind is glassy – totally calm. That’s a massive positive. The combined energy is 1375. It’s a little smaller, but the glassy conditions will make it a dream to surf. Experienced surfers only.
Thursday the 27th morning, the 6ft southerly swell is still running, with a 13-second period and a clean offshore breeze from the ENE. The combined energy is 1258. It’s another excellent session for the crew who know what they’re doing.
After that, the waves start to fade. Friday the 28th morning has a smaller 4ft SSE swell, but the offshore wind keeps it clean. The energy drops to 962. It’s still surfable, but the magic is over.
Saturday the 29th is a mixed bag. The morning has a 7ft ENE swell, but the period is short at 8 seconds, so it’s going to be a bit wonky. The combined energy is 745. The afternoon drops off quickly. By Sunday the 30th, the swell is tiny, under 3ft, and the energy is below 100. The glassy conditions in the morning are nice, but there’s no power.
Then there’s a big gap. From Monday the 31st of August all the way through to Wednesday the 2nd of September, the surf is pretty much flat or poor. The energy readings are mostly in the double digits, with a few small bumps. It’s not worth paddling out.
We get a pulse again on Thursday the 3rd of September. The morning shows a 6ft SSW swell, with a short period of 8 seconds and a cross-off wind. The combined energy is 517. It’s surfable, but it’s not the same quality as the first week.
Friday the 4th of September has a bigger 7ft southerly swell with a 13-second period, and the combined energy is 1370. The wind is cross-off, but the “marginal” tag suggests it’s not quite perfect. Still, for the second week, this is the best looking day.
Saturday the 5th of September is the other small hope. Morning is glassy, with a 4ft south swell and a 12-second period, combined energy of 779. The wind is calm, so it will be clean, but the size is small.
The standout for the whole 16 days is undeniably Tuesday the 25th of August. That 8ft, 14-second south groundswell with a clean cross-off breeze is the one to circle on the calendar. It’s big, powerful, and for the crew who can handle it. For the second week, keep an eye on Friday the 4th of September, but treat it as a promising guess.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Warm (max 23°C on Fri afternoon, min 18°C on Sat night). Winds decreasing (fresh winds from the SW on Fri afternoon, light winds from the ESE by Sat night). | Days 5-7 Weather SummaryHeavy rain (total 32mm), heaviest during Wed night. Warm (max 23°C on Thu morning, min 17°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 9 | SW 6 | SSW 8 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 11 | S 13 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 |
Wave Graph | ||||||||||||||||||||
141 | 167 | 383 | 1022 | 703 | 573 | 529 | 943 | 1559 | 3074 | 3504 | 3335 | 2534 | 1933 | 2270 | 1807 | 1487 | 1191 | 956 | 633 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off |
High Tide | 8:12PM0.67m | 12:01PM0.82m | 11:24PM0.71m | 12:46PM0.89m | 00:16AM0.79m | 1:22PM0.95m | 00:52AM0.87m | 1:54PM1.00m | 1:22AM0.95m | 2:23PM1.03m | 1:49AM1.01m | 2:48PM1.04m | 2:16AM1.07m | |||||||
Low Tide | 3:41PM0.52m | 4:02AM0.28m | 4:58PM0.48m | 5:10AM0.22m | 5:56PM0.43m | 6:05AM0.15m | 6:40PM0.37m | 6:51AM0.08m | 7:18PM0.31m | 7:32AM0.01m | 7:54PM0.27m | 8:11AM-0.03m | 8:29PM0.23m | |||||||
— | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | |
5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | |
mm | — | 3 | — | — | — | — | — | 9 | 4 | 2 | 4 | — | 1 | — | — | 4 | 18 | 3 | 3 | — |
Temp °C | 23 | 20 | 20 | 19 | 19 | 21 | 21 | 19 | 18 | 18 | 18 | 19 | 19 | 19 | 22 | 21 | 20 | 23 | 22 | 20 |
Feels °C | 21 | 18 | 18 | 19 | 19 | 20 | 21 | 18 | 17 | 17 | 17 | 19 | 19 | 18 | 23 | 22 | 22 | 26 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | SSW 8 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 11 | S 13 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 |
61 | 21 | 383 | 1022 | 703 | 573 | 529 | 943 | 1559 | 3074 | 3504 | 3335 | 2534 | 1933 | 2270 | 1807 | 1487 | 1191 | 956 | 633 | |
Swell 2 Height (m) Direction Period (s) | S 15 | SSW 9 | SSW 11 | E 7 | E 7 | E 8 | E 8 | E 8 | E 7 | — | — | — | S 18 | S 16 | — | — | — | E 6 | — | — |
5 | 16 | 74 | 4 | 4 | 5 | 5 | 4 | 4 | — | — | — | 314 | 628 | — | — | — | 32 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | S 14 | E 8 | — | — | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | 4 | 10 | — | — | 5 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 6 | — | — | — | ENE 7 | — | — | SSE 4 | — | — | — | — | E 4 | E 5 | E 5 | E 5 | — | ESE 6 | E 6 |
141 | 167 | — | — | — | 9 | — | — | 10 | — | — | — | — | 30 | 57 | 28 | 43 | — | 45 | 100 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 740 | 247 | 177 | 332 | 0 | 0 | 10 | 320 | 216 | 53 | 0 | 0 | 10 | 0 | 0 | 53 | 0 | 0 | 216 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.











